Shwetadwip Chowdhury

Inverse-scattering in biological samples via beam-propagation

This paper demonstrates that using an amplitude-only cost function with angular and defocus diversity in multi-slice beam propagation improves inverse-scattering reconstruction quality in biological samples.

Inverse-scattering of absorptive samples via beam propagation

This paper extends an inverse-scattering framework to reconstruct complex-valued refractive index, including absorptivity, by combining angle-varying illumination and sample defocus measurements.

Chromatix: a differentiable, GPU-accelerated wave-optics library

Chromatix provides a differentiable, GPU-accelerated wave-optics library to enable fast and parallelized optical simulations for computational optics applications.

Maskless and on-chip LED-array microscope with spatially-varying angle calibration for centimeter-scale phase imaging

This paper presents a computational framework for mask-free on-chip phase imaging with adaptive calibration of spatially-varying illumination angles, achieving centimeter-scale imaging with micron-level resolution.

Light-Controlled Synthetic Communication Networks via Paired Connexon Nanopores

The paper demonstrates wavelength-dependent communication between synthetic cells using engineered connexin channels that respond to UV and near IR light.